[PATCH 23/27] ext4: disable inode journal mode when using iomap buffered I/O path

Zhang Yi
2024-10-22T03:13:07Z

From: Zhang Yi <yi.zhang@huawei.com>

inode with data=journal mode will not support the iomap buffered I/O
path, so just disable this mode if EXT4_STATE_BUFFERED_IOMAP is set.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
---
fs/ext4/ext4_jbd2.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index da4a82456383..367a29babe09 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -16,7 +16,8 @@ int ext4_inode_journal_mode(struct inode *inode)
ext4_test_inode_flag(inode, EXT4_INODE_EA_INODE) ||
test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
(ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
- !test_opt(inode->i_sb, DELALLOC))) {
+ !test_opt(inode->i_sb, DELALLOC) &&
+ !ext4_test_inode_state(inode, EXT4_STATE_BUFFERED_IOMAP))) {
/* We do not support data journalling for encrypted data */
if (S_ISREG(inode->i_mode) && IS_ENCRYPTED(inode))
return EXT4_INODE_ORDERED_DATA_MODE; /* ordered */
--
2.46.1